Sun Screen Day is celebrated to create awareness of using sunscreens to protect the skin from harmful UV (Ultraviolet) rays of the sun. This day is held on May 27th, just in advance of the summer and vacation season. Ultraviolet rays from the sun is a serious risk to your health. So doctors recommend people to use sunscreens to gurard against health problems. They recommend a skin protection factor (SPF) of 15 or more. Many people forget to apply sun screen lotion so the best way to remember is to wear a wristband with the message "Apply sunscreen".